An endoscope includes: an objective optical section including a first barrel an image pickup optical section including a solid image pickup device, an optical member forming an optical image through the objective optical section on an image pickup surface of the solid image pickup device, and a second barrel housing the optical member and the solid image pickup device, the second barrel fixed to the first barrel after positional adjustment in an axial direction relative to the first barrel a holding member formed of material having a linear expansion coefficient lower than linear expansion coefficients of the first and second barrels, and fixed to outer surfaces of the first and second barrels a first adhesive that bonds the first barrel and the second barrel and a second adhesive having a bonding strength higher than that of the first adhesive, which bonds the holding member to the first and second barrels.
